Digitally sign your work/photos/graphic/artwork with iWatermark and claim and maintain the recognition you deserve.

Build your company brand, by having your company logo on all your images.

Avoid the surprise of seeing your artwork elsewhere on the web or in an ad.

Avoid the conflicts and headaches with plagiarists who claim they didn't know that you created it.

Avoid the costly litigation that can be involved after that.

Avoid intellectual property squabbles.

There are two main techniques for watermarking your images. One is the visible method, used by iWatermark, where you superimpose your logo or signature onto your image.

The second is designed to be invisible, and is used by companies such as Digimark. Hidden throughout the picture, within the code that generates it, is a recognizable pattern that identifies it as being your artwork.

This technique is usually far more expensive and has two major drawbacks. It almost always reduces the quality of the picture, and it may encourage people to copy your work because it does not appear to be copyrighted. In both cases, a skilled graphic designer intent on using your image, can find ways to remove your watermark at a cost to the quality of the image.

To learn more about the comparison of visible and invisible watermarking, here is a great article on the subject. Invisible vs. visible watermarking article